Title:
PRODUCTION OF ELECTRICALLY CONDUCTIVE MAGNETIC PARTICLE
Document Type and Number:
Japanese Patent JP3507531
Kind Code:
B2
Abstract:
PURPOSE: To stabilize electrically conductive characteristics, to raise development and to enable image picture formation in a low electric field of development by uniforming or stabilizing an electrically-conductive coating film by providing specific raw material coarse particles with heat, vibration, impact strength or shear force.
CONSTITUTION: Heat, vibration, impact strength or shear force is applied to an electrically-conductive and magnetic raw material coarse particles which comprise a synthetic resin contained in at least one of magnetic core particles and an electrically conductive coating film and electrically-conductive fine particles supported by the resin to modify the surface of the raw material coarse particles, to uniform or stabilize an electrically-conductive coating film and to reduce volume specific resistance of the raw material coarse particles.
Inventors:
Yoshio Ozawa
Susumu Kikuchi
Kotobuki
Susumu Kikuchi
Kotobuki
Application Number:
JP23540293A
Publication Date:
March 15, 2004
Filing Date:
August 26, 1993
Export Citation:
Assignee:
Kyocera Corporation
IDEMITSU KOSAN CO.,LTD.
IDEMITSU KOSAN CO.,LTD.
International Classes:
B22F1/02; C04B41/81; G03G9/10; G03G15/02; (IPC1-7): C04B41/81; B22F1/02; G03G9/10; G03G15/02
Domestic Patent References:
| JP57129444A | ||||
| JP62246075A | ||||
| JP3149564A |
Attorney, Agent or Firm:
Kihei Watanabe